Valeo Accumulators Air conditioning for Passenger car


Gas-side protection

The accumulator provides protection for air conditioning system components. It has a similar function to the receiver drier, but it works on the gaseous side of the A/C loop. Specifically, it is located on the low-pressure side of the circuit between the evaporator outlet and the compressor suction port.

Roles of the accumulator

The accumulator has three distinct roles:

  • Preventing compressor failure due to liquid build up
  • Retaining system moisture and contaminants
  • Ensuring oil return and that only refrigerant is returning to the compressor.

Valeo Tip

The accumulator is a filter drier that must be replaced approximately every 3 years, or whenever the circuit is opened.

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